Cuvette



FIG. 1 is a side perspective view of the cuvette according to the invention;

FIG. 2 is a top plan view of the cuvette thereof;

FIG. 3 is a bottom plan view of the cuvette thereof;

FIG. 4 is a side plan view of the cuvette thereof; and,

FIG. 5 is a side plan view of the cuvette thereof. 

The ornamental design for a cuvette, as shown and described. 